[libvirt] [PATCH] libxl: support VIR_MIGRATE_PERSIST_DEST migration flag

By default, virt-manager (and likely other libvirt-based apps) sets the VIR_MIGRATE_PERSIST_DEST flag when invoking the migrate API, which fails in a Xen setup since the libxl driver does not support the flag. Persisting a domain is a trivial task in the grand scheme of migration, so be nice to libvirt apps and add support for VIR_MIGRATE_PERSIST_DEST in the libxl driver. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com&gt; --- src/libxl/libxl_migration.c | 23 +++++++++++++++++++++++ src/libxl/libxl_migration.h | 1 + 2 files changed, 24 insertions(+) diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c index f1da251..3b0dc74 100644 --- a/src/libxl/libxl_migration.c +++ b/src/libxl/libxl_migration.c @@ -1021,6 +1021,29 @@ libxlDomainMigrationFinish(virConnectPtr dconn, event = NULL; } + if (flags & VIR_MIGRATE_PERSIST_DEST) { + unsigned int oldPersist = vm->persistent; + virDomainDefPtr vmdef; + + vm->persistent = 1; + if (!(vmdef = virDomainObjGetPersistentDef(cfg->caps, + driver->xmlopt, vm))) + goto cleanup; + + if (virDomainSaveConfig(cfg->configDir, cfg->caps, vmdef) < 0) + goto cleanup; + + event = virDomainEventLifecycleNewFromObj(vm, + VIR_DOMAIN_EVENT_DEFINED, + oldPersist ? + VIR_DOMAIN_EVENT_DEFINED_UPDATED : + VIR_DOMAIN_EVENT_DEFINED_ADDED); + if (event) { + libxlDomainEventQueue(driver, event); + event = NULL; + } + } + if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0) goto cleanup; diff --git a/src/libxl/libxl_migration.h b/src/libxl/libxl_migration.h index c02026d..8a074a0 100644 --- a/src/libxl/libxl_migration.h +++ b/src/libxl/libxl_migration.h @@ -29,6 +29,7 @@ # define LIBXL_MIGRATION_FLAGS \ (VIR_MIGRATE_LIVE | \ VIR_MIGRATE_PEER2PEER | \ + VIR_MIGRATE_PERSIST_DEST | \ VIR_MIGRATE_UNDEFINE_SOURCE | \ VIR_MIGRATE_PAUSED) -- 2.1.4